<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>开关灯</title>
    <link rel="stylesheet" href="index.css">
</head>
<body>
    <div class="index">
        <label class="switch">
            <input type="checkbox">
            <span></span>
        </label>
    </div>
</body>
</html>
<!-- html -->